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2
Water
810 mm (31-7/8")
Figure 2
LEFT END – WATER & STEAM
Boiler Model
Boiler Length "A"
mm
TR-20
292
TR-30
378
TR-40
464
549
TR-50
635
TR-60
721
TR-70
RATINGS
Boiler
OIL INPUT
Model
Number
mL/s USGPH† kW
MBH
*
.79
.75
31
TR-20
105
45
1.15
1.10
154
TR-30
1.25
51
1.31
175
1.68
1.60
66
224
TR-40
1.89
1.80
252
74
86
2.20
2.10
294
TR-50
2.47
2.35
96
329
2.60
107
2.73
364
TR-60
3.00
2.85
117
399
3.26
3.10
127
434
TR-70
3.52
3.35
137
469
Note: Standard working pressure 207 kPa (30 psi) water,
103 kPa (15 psi) steam.
* ADD SUFFIX
X
—Denotes no circulator and no thermostat
P
—Packaged water boiler
PT —Packaged water boiler with tankless heater
PZ —Packaged steam boiler less tankless heater
PZT —Packaged steam boiler with tankless heater
§
Tankless heater rating based on intermittent draw.
§§ Nominal clay tile liner dimensions.
Steam
Figure 1
102mm
(14")
445 mm (17-1/2")
DRAIN COCK
(Alternate 38 mm
(1-1/2") Tapping
32 mm (1-1/4")
for additional
circulator.)
89 mm (3-1/2")
Front to Flue "B"
in
mm
11-1/2
210
14-7/8
255
18-1/4
298
21-5/8
341
25
383
28-3/8
426
GROSS OUTPUT
Water
Steam
Water*
kW
MBH
kW
MBH
kW
MBH
26
90
–
–
23
79
39
134
39
134
34
117
44
38
151
–
–
131
57
195
57
195
50
170
64
218
–
56
–
190
75
65
75
251
255
223
80
272
–
69
–
237
87
298
87
259
298
76
96
327
–
284
–
83
104
354
104
306
354
90
381
331
112
–
–
97
** For forced hot water heating systems where the
boiler and all piping are located within the area to
be heated, the boiler may be selected on the
basis of gross output capacity. The net output rat-
ings shown are based on an allowance for piping
and pickup of 1.15 (water) or 1.33 (steam). Gross
output is divided by the allowance to obtain net
rating. The manufacturer should be consulted
before selecting a boiler for unusual piping and
pickup requirements such as intermittent system
operation, extensive piping, etc.
Note: m
divided by 757 W (square feet of steam is equal
to net output (BTU) divided by 240 BTUs)
Tapping
Location
Steam Boiler
1
76 mm (3") supply
1A
51 mm (2") supply on rear section
2
second 6 mm (1/4") siphon & pressure
cut-out if required
3
19 mm (3/4") steam safety valve
4
6 mm (1/4") siphon, pressure gauge &
pressure cut-out
5A
—
5B
—
6
—
7
—
8
19 mm (3/4") alternate electronic low
water cut-off
9
38 mm (1-1/2") skimmer tapping
10
13 mm (1/2") low limit for tankless
11A
13 mm (1/2") tankless inlet
11B
13 mm (1/2") tankless outlet
12
13 mm (1/2") steam gauge glass & 67 LWCO
13
38 mm (1-1/2") bushed to 19 mm (3/4") for drain cock
14
38 mm (1-1/2") condensate return
15
3/4" NPT zone tapping
635 mm
(25")
372 mm
(14-5/8")
1
95 mm (3-3/4")
Flue Diameter "C"
in
mm
in
8-9/32
152¶
¶6¶
10-1/32
152¶
¶6¶
11-23/32
178
7
13-13/32
203
8
15-3/32
203
8
16-25/32
229
9
NET OUTPUT**
CHIMNEY SIZE
Nom. Rect
Steam
Steam
×Height§§
m
kW
MBH
2
Sq. Ft.
in.×in.×ft.
mm×mm×m
–
–
–
–
8" × 8"
30
101
39
421
× 15'
–
–
–
–
203 × 203
× 4.6m
43
55
608
146
–
–
–
–
74
796
56
191
–
–
–
–
8" × 12"
× 15'
224
87
933
66
203 × 305
–
–
–
–
× 4.6m
266
103
1108
78
–
–
–
–
2
of steam is equal to net output (W)
38 mm (1-1/2") supply
—
19 mm (3/4") air vent or expansion tank
19 mm (3/4") water relief valve
—
13 mm (1/2") tankless inlet
13 mm (1/2") tankless inlet
6 mm (1/4") pressure temp. gauge
13 mm (1/2") high limit, hi/lo or
combination control
—
—
—
—
—
38 mm (1-1/2") return &
19 mm (3/4") drain cock
38 mm (1-1/2") alternate return
—
1
648 mm
(25-1/2")
Circulator Flange
mm
in
38
1-1/2
38
1-1/2
38
1-1/2
38
1-1/2
38
1-1/2
–
–
AFUE %
FLUE SIZE
Round I.D.×
Height
Water
Steam
mm
In.
in.×ft.
mm.×m
5"×15'
83.50
–
152
¶6¶
127×4.6m
84.85
84.15
152
6
6"×15'
–
83.50
152
6
152×4.6m
178
7"×15'
84.45
83.80
7
178×4.6m
–
178
7
83.33
8"×15'
84.06
83.45
203
8
203×4.6m
–
–
203
8
–
203
–
8
–
–
203
10"×15'
8
254×4.6m
–
229
–
9
–
–
229
9
†
Ratings apply to the use of light oil at 11,000 W/L
(140,000 Btu per gallon), and apply only when
burner models listed on pages 15–17 of this man-
ual are used, and are properly adjusted to pro-
duce 13% CO
.
2
¶
TR-20 Collar is oblong, will fit 152 mm (6") diame-
ter nominal connector.
TR Series
Water Boiler
44 mm
(1-3/4")
Overall Length "E"
mm
in
616
24-1/4
702
27-5/8
787
31
873
34-3/8
959
37-3/4
1045
41-1/8
TANKLESS HEATER §
Water
Steam
mL/s
USGPM
mL/s
USGPM
–
139
2.20
–
202
3.20
189
3.00
214
3.40
–
–
246
221
3.50
3.90
261
–
–
4.15
277
4.40
252
4.00
296
4.70
–
–
4.50
309
4.90
284
–
328
5.20
–
5.45
315
343
5.00
259
5.70
–
–
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